Cold Mastery

Master the cold — one session at a time.

Cold Mastery is your guided companion for cold showers, ice baths, and cold plunges. No method dogma, no guru subscription — a precise tool that turns your intention into a daily practice.

THE COMPLETE PRACTICE ON iPHONE • Timer with adjustable lead-in and voice coach • Guided breathing exercise (Box Breathing, Power Breathing, and more) before each session • 3 training programs — from beginner to Cold Master • Streak tracking with milestones and daily goals • Temperature tracking for every session • Session history, calendar, and progress charts

WITH APPLE WATCH: MEASURED LIVE Wearing a Watch adds the crucial layer — in the shower, in the plunge, and in open water: • Direct access from the watch face — two taps and your session is running • Haptic countdown pulses every 15 or 30 seconds — close your eyes, focus on your body • Live heart rate during the session: see your cold shock response in real time • Recovery phase with HR recovery tracking after the cold • Water Lock for safe wear underwater

PROGRESS YOU CAN MEASURE
Cold Mastery doesn't just show you how long you lasted — it shows how your body adapts: • Peak heart rate trend: your cold shock response decreases over weeks • Recovery rate: how quickly your heart rate returns after the cold • Endurance: from 15 seconds to Cold Master

PROGRAMS THAT CARRY YOU Three evidence-based training programs give your practice structure: • Cold Starter — your entry point with short cold showers • Cold Seeker — increase duration and intensity step by step • Cold Master — for the experienced: ice baths, plunges, and longer exposures

YOUR DATA STAYS YOURS • No account required — no profile, no email • No data sent to external servers — your sessions stay on your devices • Private iCloud sync between iPhone and Watch

COLD MASTERY PRO The core features with cold showers, timer, and streak are free. Pro unlocks:

• All session types (ice bath, cold plunge, open water) • Guided breathing exercise with voice coach • Detailed progress charts (HR trends, recovery rate) • Training programs

Not a medical device. Cold exposure carries risks — educate yourself and listen to your body. Not suitable for certain cardiovascular conditions, asthma, or during pregnancy. When in doubt: consult a doctor.

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